Senior Mainframe Systems Programmer - Site Reliability Engineering

Ensono, Pune, India +1

What you need

Technical Expertise:
xx+ years in z/OS system programming, performance tuning, or infrastructure support.
Proficiency in JCL, REXX, Python, and mainframe automation tools (IBM Z System Automation, Broadcom OPS/MVS).
Hands-on experience with Zowe, Ansible, Git, and CI/CD pipelines.
Mastery of SRE tenets: SLOs/SLIs, error budgets, and Infrastructure-as-Code (IaC).
Innovation Focus:
Proven track record in implementing AI/ML-driven monitoring or auto-remediation for mainframe environments.

1.SRE-Centric Innovation & Automation

Automation Engineering:
Design and deploy Infrastructure-as-Code (IaC) solutions using Ansible, Zowe CLI, and z/OSMF workflows to automate system provisioning, configuration management, and recovery processes.
Develop self-healing workflows for critical subsystems (CICS, Db2, IMS) to auto-resolve incidents like JVM failures or transaction bottlenecks.
Convert legacy operational scripts (REXX, NCL) into modern, version-controlled pipelines integrated with Git and CI/CD tools like Jenkins.
AI-Driven Observability:
Implement predictive analytics tools (e.g., IBM Watson AIOps, Splunk ITSI) to detect anomalies in system metrics, logs, and message queues.
Build dashboards using Grafana or Prometheus to visualize the Four Golden Signals (latency, traffic, errors, saturation) across mainframe workloads.
Centralize alert management to reduce noise and prioritize actionable alerts using AI-driven correlation.
DevOps Integration & Modernization
CI/CD for Mainframe:
Streamline software delivery pipelines for COBOL/PL/I applications using IBM Dependency-Based Build (DBB) and UrbanCode Deploy (UCD).
Integrate mainframe SDLC processes with enterprise Git repositories (GitHub, GitLab) to enable collaborative development and audit trails.
Enable automated testing and phased rollouts for z/OS middleware updates.
Performance & Capacity Engineering:
Optimize CPU/MIPS utilization through runtime tuning (e.g., CICS Threadsafe, AT-TLS offloading) to reduce software licensing costs.
Forecast capacity demands using historical SMF/RMF data and propose dynamic hardware scaling strategies.
Conduct load testing for batch and OLTP workloads to validate system limits and error budgets.
Incident Management & Reliability
Lead blameless postmortems for critical incidents, focusing on root cause analysis (RCA) and preventive actions (e.g., monitoring gaps, automation fixes).
Reduce MTTR by implementing automated incident response playbooks (e.g., auto-restart failed subsystems, reroute traffic).
Maintain 24/7 operational readiness through on-call rotations and cross-training in z/OS, CICS, Db2, and storage management.
Platform Hardening & Knowledge Sharing
Enforce security best practices (RACF, TLS) and vulnerability remediation for z/OS and middleware.
Develop reusable workbooks and runbooks to document system configurations, troubleshooting steps, and automation workflows.
Mentor teams on SRE principles, fostering a T-shaped skill model (deep mainframe + DevOps/Agile practices).
Batch Optimization & Resource Management
Design dynamic resource allocation strategies (e.g., WLM policies, enclaves) to prioritize critical batch jobs and minimize contention for CPU, memory, and I/O resources.
Implement parallel processing (e.g., multi-task JCL, SYSAFF routing) to reduce runtime and avoid bottlenecks in long-running batch cycles.
Streamline job dependencies using graph-based scheduling tools (e.g., IWS, CA7, Control-M) to eliminate idle wait times between interdependent jobs.
Proactive Batch Health Monitoring :
Develop automated checks for batch job SLAs, including real-time alerts for delays, resource starvation, or dataset contention.
Integrate predictive analytics (e.g., historical SMF data analysis) to forecast and mitigate delays caused by seasonal peaks or data volume spikes.

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Senior Mainframe Systems Programmer - Site Reliability Engineering

What you need

Senior Mainframe Systems Programmer - Site Reliability Engineering

What you need

Nice to have

1.SRE-Centric Innovation & Automation

About Ensono

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